French diagnostic reference levels in diagnostic radiology, computed tomography and nuclear medicine: 2004-2008 review

2012 ◽  
Vol 154 (1) ◽  
pp. 52-75 ◽  
Author(s):  
P. Roch ◽  
B. Aubert
Keyword(s):  
Computed Tomography ◽  
Nuclear Medicine ◽  
Diagnostic Radiology ◽  
Diagnostic Reference Levels ◽  
Reference Levels

scholarly journals The 2020 national diagnostic reference levels for nuclear medicine in Japan

2020 ◽  
Vol 34 (11) ◽  
pp. 799-806
Author(s):  
Koichiro Abe ◽  
Makoto Hosono ◽  
Takayuki Igarashi ◽  
Takashi Iimori ◽  
Masanobu Ishiguro ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Nuclear Medicine ◽  
Radiation Dose ◽  
Single Photon ◽  
Photon Emission ◽  
Emission Computed Tomography ◽  
Diagnostic Reference Levels ◽  
Reference Levels ◽  
Positron Emission ◽  
Pet Ct

Abstract The diagnostic reference levels (DRLs) are one of several effective tools for optimizing nuclear medicine examinations and reducing patient exposure. With the advances in imaging technology and alterations of examination protocols, the DRLs must be reviewed periodically. The first DRLs in Japan were established in 2015, and since 5 years have passed, it is time to review and revise the DRLs. We conducted a survey to investigate the administered activities of radiopharmaceuticals and the radiation doses of computed tomography (CT) in hybrid CT accompanied by single photon emission computed tomography (SPECT)/CT and positron emission tomography (PET)/CT. We distributed a Web-based survey to 915 nuclear medicine facilities throughout Japan and survey responses were provided by 256 nuclear medicine facilities (response rate 28%). We asked for the facility's median actual administered activity and median radiation dose of hybrid CT when SPECT/CT or PET/CT was performed for patients with standard habitus in the standard protocol of the facility for each nuclear medicine examination. We determined the new DRLs based on the 75th percentile referring to the 2015 DRLs, drug package inserts, and updated guidelines. The 2020 DRLs are almost the same as the 2015 DRLs, but for the relatively long-lived radionuclides, the DRLs are set low due to the changes in the Japanese delivery system. There are no items set higher than the previous values. Although the DRLs determined this time are roughly equivalent to the DRLs used in the US, overall they tend to be higher than the European DRLs. The DRLs of the radiation dose of CT in hybrid CT vary widely depending on each imaging site and the purpose of the examination.

NATIONAL DIAGNOSTIC REFERENCE LEVELS FOR NUCLEAR MEDICINE IN KUWAIT

2021 ◽  
pp. jnmt.121.262175
Author(s):  
Mashari Alnaaimi ◽  
Mousa Alduaij ◽  
Musab Algaily ◽  
Fisal Shanawey ◽  
Talal Mohammedzein ◽  
...  
Keyword(s):  
Nuclear Medicine ◽  
Diagnostic Reference Levels ◽  
Reference Levels

Establishing local diagnostic reference levels for adult computed tomography in Morocco

2022 ◽  
Author(s):  
M. El Mansouri ◽  
M. Talbi ◽  
A. Choukri ◽  
O. Nhila ◽  
M. Aabid
Keyword(s):  
Computed Tomography ◽  
Adult Patients ◽  
Radiation Doses ◽  
Diagnostic Reference Levels ◽  
Reference Levels ◽  
Dose Length Product ◽  
Head Ct ◽  
Ct Examination ◽  
Japanese Studies ◽  
The Uk

In Morocco, the radiation doses received by adult patients are increasing due to the number of CT examinations performed and the larger number of computed tomography (CT) scanners installed. The aim of this study was to evaluate the radiation doses received by patients for the most common adult CT examinations in order to establish local diagnostic reference levels (DRLs). Data from 1016 adult patients were collected during 3 months from four Moroccan hospitals. Dose length product (DLP) and volumetric computed tomography dose index (CTDIvol) were evaluated by determining the 75th percentile as diagnostic reference levels for the most common examinations including head, chest and abdomen. The DRL for each examination was compared with other studies. The established DRLs in Morocco in terms of CTDIvol were 57.4, 12.3 and 10.9 for CT examinations of the head, chest, abdomen, respectively. For DLP, they were 1020, 632 and 714, respectively. These established DRLs for CTDIvol were almost similar to the UK DRLs at all examinations, higher than the Egyptian DRLs and lower than the Japanese DRLs at the head CT examination, lower than the DRLs from Egypt and Japan at the CT abdomen examination. In terms of DLP, the DRLs were higher than those of the British studies, lower than those of the Egyptian and Japanese studies at the head CT examination were higher at chest CT and lower at abdominal CT than those of all selected studies. The higher level of established DRLs in our study demonstrates the requirement of an optimization process while keeping a good image quality for a reliable diagnosis.

Establishing national diagnostic reference levels (DRLs) for computed tomography in Egypt

2017 ◽  
Vol 39 ◽  
pp. 16-24 ◽  
Author(s):  
Dina Husseiny Salama ◽  
Jenia Vassileva ◽  
Gamal Mahdaly ◽  
Mona Shawki ◽  
Ahmad Salama ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Diagnostic Reference Levels ◽  
Reference Levels

Comparison of Radiation Dose in CT Examinations At PIMS with European Commission Reference Doses

2021 ◽  
Vol 17 (3) ◽  
pp. 216-221
Author(s):  
Fawad Yasin ◽  
Anum Rasheed ◽  
Muhammad Nauman Malik ◽  
Farheen Raza ◽  
Ramish Riaz ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Radiation Dose ◽  
European Commission ◽  
Large Scale ◽  
Radiology Department ◽  
Radiation Doses ◽  
Diagnostic Reference Levels ◽  
Reference Levels ◽  
Dose Length Product ◽  
Ct Dose

OBJECTIVE - The purpose of this study was to assess the radiation dose levels from common computed tomography (CT) examinations performed in Radiology Department of Pakistan Institute of Medical Sciences (PIMS), and evaluate these according to diagnostic reference levels (DRLs) proposed by European Commission (EC) guidelines, and thus contributing towards the establishment of local and national DRLs. To the best of our knowledge, this is the first study of its kind to explore radiation doses from CT examinations in Pakistan. STUDY DESIGN - This was a quantitative study conducted at PIMS, Islamabad, spanning a duration of eight weeks. Scan parameters and dose profile data of 1506 adults undergoing examinations of head, neck, chest and abdomen-pelvis regions, comprising of single- and multi-phase, contrast-enhanced and unenhanced studies. Dose indicators utilized by EC guidelines for DRLs include volume CT dose index (CTDIvol) and Dose Length Product (DLP) for single slice and complete examination radiation doses, respectively. METHOD - Values of CTDIvol, DLP and scan lengths were extracted from the CT operators console. Other control variables included gender, contrast enhancement and phasicity of study. IBM SPSS package was used to obtain descriptive statistics such as mean and quartiles. RESULTS - DRLs calculated as 75th percentile of CTDIvol, DLP for various anatomical regions are by and far comparable to European DRLs. CONCLUSION – This study describes institutional diagnostic reference levels for common CT exams in Islamabad and provides benchmark values for future reference. Our DRL values are mostly comparable to European and international DRLs. Similar, albeit large scale, surveys are recommended for establishment of local and national DRLs, eventually contributing towards development of regional DRLs. KEYWORDS: CTDIvol, DLP, Diagnostic Reference Levels, Computed Tomography, Radiation Monitoring, Scan length

A systematic review on the current status of adult diagnostic reference levels in head, chest and abdominopelvic Computed Tomography

2020 ◽  
Vol 40 (3) ◽  
pp. R71-R98
Author(s):  
Mohamad Fawzi Awad ◽  
Lina Karout ◽  
Ghida Arnous ◽  
Mohammad Ahmmad Rawashdeh ◽  
Layal Hneiny ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Systematic Review ◽  
Current Status ◽  
Diagnostic Reference Levels ◽  
Reference Levels

scholarly journals U.S. PET/CT and Gamma Camera Diagnostic Reference Levels and Achievable Administered Activities for Noncardiac Nuclear Medicine Studies

Radiology ◽  
2019 ◽  
Vol 293 (1) ◽  
pp. 203-211 ◽  
Author(s):  
Murray D. Becker ◽  
Priscilla F. Butler ◽  
Mazen Siam ◽  
Dustin A. Gress ◽  
Munir Ghesani ◽  
...  
Keyword(s):  
Nuclear Medicine ◽  
Gamma Camera ◽  
Diagnostic Reference Levels ◽  
Reference Levels ◽  
Pet Ct
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